Sierra 85g HPBT seating depth

[grayfox]

Does Sierra have anything on this? If not then you can look at seating for the 87 Hornady for some guidance, but the better way to find an optimum is to use an oal gage like hornady's and see what your barrel's lands will allow, then measure to see what length puts the bearing surface lining up to the case neck. For a short pill like the 85 It will likely be kinda short as far as OAL.